/* ═══════════════════════════════════════════
   ABOUT
═══════════════════════════════════════════ */
.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-content .section-label { display: inline-block; margin-bottom: 16px; }
.about-content .section-title { margin-bottom: 20px; }

.about-content p {
  color: var(--gray-500);
  line-height: 1.8;
  margin-bottom: 16px;
  font-size: 1.02rem;
}

.about-quote {
  border-left: 4px solid var(--red-600);
  padding: 16px 20px;
  background: var(--red-50);
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--dark);
  font-style: italic;
  font-size: 1rem;
  margin: 28px 0;
  line-height: 1.6;
}

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.astat-card {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-lg);
  padding: 28px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 6px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.astat-card:hover {
  border-color: var(--red-200, #fca5a5);
  box-shadow: var(--shadow-red);
  transform: translateY(-4px);
}
.astat-card i {
  font-size: 1.8rem;
  color: var(--red-600);
  margin-bottom: 4px;
}
.astat-card .astat-num {
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--dark);
  font-family: var(--font-head);
  line-height: 1;
}
.astat-card span:last-child {
  font-size: .82rem;
  color: var(--gray-500);
  font-weight: 500;
}

/* ═══════════════════════════════════════════
   SERVICES
═══════════════════════════════════════════ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.service-card {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 4px;
  background: linear-gradient(to right, var(--red-600), var(--red-400));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .4s ease;
}
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--red-100); }
.service-card:hover::before { transform: scaleX(1); }

.service-icon {
  width: 56px; height: 56px;
  background: var(--red-50);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: var(--red-600);
  transition: var(--transition);
}
.service-card:hover .service-icon {
  background: var(--red-600);
  color: var(--white);
}

.service-card h3 { font-size: 1.1rem; font-weight: 700; }
.service-card p  { font-size: .92rem; color: var(--gray-500); line-height: 1.7; flex: 1; }

.service-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--red-600);
  font-size: .88rem;
  font-weight: 600;
  margin-top: 4px;
  transition: gap .3s;
}
.service-link:hover { gap: 10px; }

/* ═══════════════════════════════════════════
   METHODOLOGY
═══════════════════════════════════════════ */
.method-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
}

.method-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
  padding: 0 20px;
}

.step-num {
  font-size: 3.5rem;
  font-weight: 900;
  color: var(--red-100);
  font-family: var(--font-head);
  line-height: 1;
  margin-bottom: -10px;
  position: relative;
  z-index: 1;
}

.step-line {
  width: 100%;
  height: 2px;
  background: var(--gray-100);
  position: absolute;
  top: 68px;
  left: 50%;
  z-index: 0;
}
.method-step:last-child .step-line { display: none; }

.step-content {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-lg);
  padding: 28px 20px;
  width: 100%;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.method-step:hover .step-content {
  border-color: var(--red-100);
  box-shadow: 0 12px 36px rgba(220,38,38,.12);
  transform: translateY(-4px);
}

.step-icon {
  width: 52px; height: 52px;
  background: var(--red-600);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: var(--white);
  margin: 0 auto 16px;
  box-shadow: var(--shadow-red);
}
.step-content h3 { font-size: 1rem; font-weight: 700; margin-bottom: 10px; }
.step-content p  { font-size: .87rem; color: var(--gray-500); line-height: 1.6; }

/* ═══════════════════════════════════════════
   MODULES
═══════════════════════════════════════════ */
.modules-versions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 48px;
}

.version-badge {
  background: var(--gray-100);
  color: var(--gray-500);
  font-size: .82rem;
  font-weight: 600;
  padding: 8px 18px;
  border-radius: 50px;
  transition: var(--transition);
}
.version-badge.active {
  background: var(--red-600);
  color: var(--white);
  box-shadow: var(--shadow-red);
}

.modules-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.module-card {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius);
  padding: 24px 20px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.module-card:hover {
  border-color: var(--red-600);
  box-shadow: 0 8px 28px rgba(220,38,38,.14);
  transform: translateY(-4px);
}
.module-card i {
  font-size: 1.8rem;
  color: var(--red-600);
  margin-bottom: 4px;
}
.module-card h4 { font-size: .95rem; font-weight: 700; }
.module-card p  { font-size: .8rem; color: var(--gray-500); }

/* ═══════════════════════════════════════════
   FAQ
═══════════════════════════════════════════ */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.faq-item:hover  { border-color: var(--red-100); }
.faq-item.open   { border-color: var(--red-600); }

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  font-weight: 600;
  font-size: .97rem;
  color: var(--dark);
  font-family: var(--font-head);
  text-align: left;
  transition: color .3s;
}
.faq-item.open .faq-question { color: var(--red-600); }

.faq-icon {
  font-size: .85rem;
  color: var(--red-600);
  transition: transform .3s ease;
  flex-shrink: 0;
}
.faq-item.open .faq-icon { transform: rotate(45deg); }

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s ease, padding .3s ease;
}
.faq-item.open .faq-answer { max-height: 300px; }

.faq-answer p {
  padding: 0 24px 20px;
  color: var(--gray-500);
  font-size: .93rem;
  line-height: 1.7;
}

/* ═══════════════════════════════════════════
   RESPONSIVE SECTIONS
═══════════════════════════════════════════ */
@media (max-width: 1100px) {
  .modules-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; gap: 48px; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .method-steps { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .step-line { display: none; }
}

@media (max-width: 640px) {
  .services-grid { grid-template-columns: 1fr; }
  .about-stats { grid-template-columns: 1fr 1fr; }
  .modules-grid { grid-template-columns: repeat(2, 1fr); }
  .method-steps { grid-template-columns: 1fr; }
}